Laws against selling/shipping 10/22 magazines across state lines?

[Big A]

you need to disassemble them for cali and a few other states and they are ok to ship as they are parts at that point.
my buddy just sent a 30 round mag to cali that way. if you look on guinbroker alot of people send them like that to cal.

I don't see how you can not get caught running a 30 round magazine, as it blatantly hold more than 10 rounds.

FWIW though, a gun shop down in San Diego told me I'd be fine with my 17 round Glock mags, so long as I didn't load any more than 10 rounds in it. I dunno the legality of that, so I just bought some 10 round mags.

[forbes]

I don't see how you can not get caught running a 30 round magazine, as it blatantly hold more than 10 rounds.

FWIW though, a gun shop down in San Diego told me I'd be fine with my 17 round Glock mags, so long as I didn't load any more than 10 rounds in it. I dunno the legality of that, so I just bought some 10 round mags.

parts are parts.. what the end user does with them is his deal.
just like you can buy fully auto part kits...
you can have them but to build them back is illegal.